Inspection Procedure

WARNING: This page is about a different car, the 2002 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.

Noise Check :
Preparation : Insert the already registered master key in the key cylinder.

Check : Using an oscilloscope or TOYOTA hand-held tester, check that noise is included in the signals sent to the CODE terminal of the ECM.

OK : No noise is detected.

Fig 1: Displaying Noise (Example)
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1. NG : Try to find the cause of the noise and remove it.
2. OK : Go to next step.
Does The System Operate Normally After Replacement Of Transponder Key Amplifier ?
1. Yes : Replace transponder key amplifier.
2. No : Replace ECM.